jvmTest.com.sksamuel.kotest.ShouldFailTest.kt Maven / Gradle / Ivy

Go to download
package com.sksamuel.kotest

import com.sksamuel.kotest.throwablehandling.catchThrowable
import io.kotest.assertions.shouldFail
import io.kotest.core.spec.style.FreeSpec
import io.kotest.matchers.shouldBe
import io.kotest.matchers.types.shouldBeInstanceOf

class ShouldFailTest : FreeSpec({

   "shouldFail" - {
      "Should throw an exception when code succeeds" {
         val t = catchThrowable { shouldFail { /* Code succeeds */ } }
            t.shouldBeInstanceOf()
         t.message shouldBe "Expected exception java.lang.AssertionError but no exception was thrown."
      }

      "Should throw an exception when code throws something other than an assertion error" {
         val t = catchThrowable { shouldFail { throw Exception() } }
         t.shouldBeInstanceOf()
         t.message shouldBe "Expected exception java.lang.AssertionError but a Exception was thrown instead."
      }

      "Should not thrown an exception when code fails with an assertion error" {
         val t = catchThrowable { shouldFail { throw AssertionError() } }
         t shouldBe null
      }
   }
})